/*
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 * 
 * This file is a derivative of code released by the University of
 * California under the terms listed below.  
 *
 * WALA JDT Frontend is Copyright (c) 2008 The Regents of the
 * University of California (Regents). Provided that this notice and
 * the following two paragraphs are included in any distribution of
 * Refinement Analysis Tools or its derivative work, Regents agrees
 * not to assert any of Regents' copyright rights in Refinement
 * Analysis Tools against recipient for recipient's reproduction,
 * preparation of derivative works, public display, public
 * performance, distribution or sublicensing of Refinement Analysis
 * Tools and derivative works, in source code and object code form.
 * This agreement not to assert does not confer, by implication,
 * estoppel, or otherwise any license or rights in any intellectual
 * property of Regents, including, but not limited to, any patents
 * of Regents or Regents' employees.
 * 
 * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT,
 * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
 * INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE
 * AND ITS DOCUMENTATION, EVEN IF REGENTS HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
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 */
package javaonepointfive;

public class AnonymousGenerics {

	static interface Ops<E> {
		public E nullary();
		public E unary(E x);
	}

	static class StrTripler implements Ops<String> {
		// if has type parameters, find overriding method and 
		// get erasures for all of those types and make a new method
		// that calls this one (with casts). no worries about return values.
		
    @Override
    public String unary(String x) {
			return x + x + x;
		}
		
    @Override
    public String nullary() {
			String x = "talk about it ";
			return x+x+x;
		}
	}		

	public static void main(String args[]) {
		(new AnonymousGenerics()).doit();
	}
	
	private void doit() {
		Ops<String> strQuadrupler = new Ops<String>() {
			
      @Override
      public String unary(String x) {
				return x+x+x+x;
			}
			
      @Override
      public String nullary() {
				String x = "time to make a move to the global economy ";
				return x+x+x+x;
			}
		};
		System.out.println(strQuadrupler.unary("hi"));
		System.out.println(new StrTripler().unary("hi"));
		
		String globalEconomy = strQuadrupler.nullary();
		System.out.println(globalEconomy);
		
		Ops<String> ops = new StrTripler();
		globalEconomy = ops.nullary();
		System.out.println(globalEconomy);
		
		Ops<String> hack = ops;
		hack.unary("whatever");
		hack.nullary();
		hack = strQuadrupler;
		hack.unary("whatever");
		hack.nullary();
	}
}
